M25 speeding - reacting time?

Soldato
Joined
18 Oct 2002
Posts
5,280
I've come through the variable limit tonight between J10 - J16. I was as good as gold, ensured I was below all the limit displayed at all times until I came up to one of the last ones. I depend on my license for my job so I am always very careful particularly on the M25 as I cover this stretch a lot.

The displayed speed dropped from 40, down to 30 in front of me and almost immediately down to 20. I had to double take as I have never seen a 20mph limit be displayed on any motorway so I was unsure whether I was reading it correctly. I started to brake but had someone behind me so slamming on the anchors was not an option unless I wanted him in the car with me and I went through the camera somewhere between the 30-35mph mark.

I saw a flash and instantly thought &^%$ but I don't remember seeing an additional flash. There must have been less than a minute between the limit dropping and the flash.

Obviously I am now concerned that I may wind up with points at least. Is there a grace period between when the limit changes and how soon the cameras start enforcing the new limit please?

I have never heard of anyone being nicked on the M25 whether it be in the variable limit or otherwise, have you?

Cheers in advance.
 
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As far as i'm aware there has to be a gantry displaying the speed limit before there is a gantry with a camera to enforce it.
 
You'll be fine. I didn't realise they even flashed? I'm sure I have been in the position where they weren't on at all....then turned on at 60mph in front of me, never got a NIP in the post?
 
You'll be fine. I didn't realise they even flashed? I'm sure I have been in the position where they weren't on at all....then turned on at 60mph in front of me, never got a NIP in the post?

Only a few of them have cameras in, I've seen a couple of people get flashed but it's rare.
 
Go faster after 167MPH it can't catch you? but doubt a non turboed audi coudl get that fast?

Thats a load of BS mythbuster tested in in a 180mph gallardo iirc and the picture was still clear as anything

on a side note just watched a bit of that episode again and in the US they only need 1 photo to convict you and in the UK they need 2, they also refered to someone in the uk beating a UK gatso at 180+ MPH
 
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